.margin{
  margin: 15px;
}

.sub-title{
  font-size: 20px;
  font-weight: bold;
  padding-left: 20px;
  padding-right: 20px;
}

.sub-artical{
  font-size: 15px;
  padding-left: 20px;
  padding-right: 20px;
}

.sub-margin{
  margin-top: 30px;
}

.text-box{
  width: 100%;
}

.txt-left{
  text-align: left;
}

.code{
  display: block;
  background: none repeat scroll 0 0;
  background-color: #f8f8f8;
  border-radius:4px 4px 4px 4px;
  box-shadow: rgba(0, 0, 0, 0.25) 0px 0px 10px inset;
  clear: both;
  font-family: 'Consolas', 'Courier', 'Monaco', monospace;
  color: #000000;
  /*background-color: #f8f8f8;*/
  padding: 5px;
  margin: 5px 0px;
  overflow: auto;
  white-space: pre;
  /*text-indent: 1em;*/
}
